![]() ![]() To clear Bash history, you can delete a specific entry with the history -d N where N is the number of the command or a range of numbers. You can pipe history into grep or less to make it easier to filter the output. For example, history 2 will return the 2 most recent commands. We can limit the output to the last N commands with the command history N. You can also use the ↑ and ↓ keys on your keyboard to scroll through your bash history. The numbers next to the commands indicate the order they were entered into the history (the oldest command being 1). You should see output similar to this: history The easiest way to get started working with bash is to run the history command with no options. Below, we’ll go through how to see bash history, how to clear bash history, as well as how to search through the bash history. #Working with Bash history: the basicsīash history is a feature that allows you to view and clear previously executed commands. You can modify the default behavior of the history command by setting environment variables, which we'll review in more detail shortly. The history buffer is limited to 1,000 command entries and the history file is limited to 2,000 entries. Once you log out, commands are written to disk in the ~/.bash_history file. #Where is Bash history stored?īy default, history stores commands in RAM until you log out of the terminal. ![]() In the sections below, we'll explore how these aspects of bash history work. In addition to these two bulitin commands, there are a variety of files (like ~/.bash_history), expansions (like !!), and keyboard shortcuts (like the ↑ and ↓ keys) that help you work with bash history. fc- Allows you to list, edit, and execute commands from your bash history.īecause the term "bash history" often implies the history command, we'll focus on the mechanics of the history command instead of fc for most of this article.history- Allows you to list commands and modify your bash history.The term bash history refers to the commands, files, and shortcuts that allow you to view, modify, and delete bash commands that have been run on a system.īash has two bulitin commands for working with bash history: You can follow along with the commands in this article using almost any modern *nix operating system with bash. In this article, we'll take a closer look at what bash history is, how it works, and how you can use it to become more efficient when you're working at the Linux command line. In all of those cases, knowing how to work with Linux bash history command helps. Other times, we just need to run the same command again or determine what commands were previously executed on a system. Developers, sysadmins, and DevOps engineers spend a lot of time at the Linux command line.
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